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4-ACETYLAMINO-N-(5-METHYL-3-ISOXAZOLYL)BENZENESULFONAMIDE

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4-ACETYLAMINO-N-(5-METHYL-3-ISOXAZOLYL)BENZENESULFONAMIDE Basic information

Product Name:
4-ACETYLAMINO-N-(5-METHYL-3-ISOXAZOLYL)BENZENESULFONAMIDE
Synonyms:
  • N4-ACETYLSULFAMETHOXAZOLE
  • 4’-((5-methyl-3-isoxazolyl)sulfamoyl)-acetanilid
  • 4’-((5-methyl-3-isoxazolyl)sulfamoyl)acetanilide
  • N-[3-[(5-methyl-3-isoxazolyl)sulfonylamino]phenyl]acetamide
  • acetylsulfamethoxazole
  • n-(4-(((5-methyl-3-isoxazolyl)amino)sulfonyl)phenyl)-acetamid
  • n(sup4)-acetylsulfisomezole
  • n(sup4)-acetylsulfulfamethoxazole
CAS:
21312-10-7
MF:
C12H13N3O4S
MW:
295.31
EINECS:
244-330-5
Product Categories:
  • Intermediates & Fine Chemicals
  • Metabolites & Impurities
  • Pharmaceuticals
  • Isotope Labeled Compounds
Mol File:
21312-10-7.mol
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4-ACETYLAMINO-N-(5-METHYL-3-ISOXAZOLYL)BENZENESULFONAMIDE Chemical Properties

Melting point:
222°C dec.
Density 
1.3953 (rough estimate)
refractive index 
1.6320 (estimate)
storage temp. 
Inert atmosphere,2-8°C
solubility 
DMSO (Slightly), Methanol (Slightly)
pka
5.60±0.50(Predicted)
form 
powder
color 
Light Orange to Light Brown
Water Solubility 
76mg/L(37 ºC)
BRN 
285801
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Safety Information

WGK Germany 
3
HS Code 
29350030
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4-ACETYLAMINO-N-(5-METHYL-3-ISOXAZOLYL)BENZENESULFONAMIDE Usage And Synthesis

Chemical Properties

Brown Solid

Uses

A metabolite of Sulfamethoxazole.

Uses

A labelled metabolite of Sulfamethoxazole.

Definition

ChEBI: A sulfonamide compound having a 4-acetamidophenyl group attached to the sulfur atom and a 1,2-oxazol-3-yl group attached to the nitrogen atom.

Synthesis

1072-67-9

121-60-8

21312-10-7

General procedure for the synthesis of N-(4-(N-(5-methylisoxazol-3-yl)aminosulfonyl)phenyl)acetamide from 3-amino-5-methylisoxazole and p-acetamidobenzenesulfonyl chloride: a mixture of 4-acetamidobenzene-1-sulfonyl chloride (4.27 mmol), 5-methylisoxazol-3-amine (4.49 mmol) and DMAP (0.21 mmol) in an anhydrous The mixture in pyridine (10 mL) was stirred at room temperature for 12 hours. After completion of the reaction, the solvent was evaporated to dryness and the residue was diluted with water and extracted with ethyl acetate. The combined organic layers were washed sequentially with water and 1 M aqueous HCl, dried over anhydrous Na2SO4, filtered and concentrated in vacuum. The resulting solid residue was purified by fast column chromatography using heptane to ethyl acetate (50-100%) gradient elution to afford the target compound N-(4-(N-(5-methylisoxazol-3-yl)aminosulfonyl)phenyl)acetamide. Yield: 59%; ESIMS m/z calculated value C12H13N3O4S [M + H]+, 296.07; measured value 296.06; 1H NMR (400 MHz, (CD3)2SO): δ 11.30 (bs, 1H), 10.35 (bs, 1H), 7.79-7.73 (m, 4H), 6.12 (s, 1H). 2.29 (s, 3H), 2.07 (s, 3H).13C NMR (100 MHz, (CD3)2SO): δ 170.71, 169.57, 158.07, 144.01, 133.36, 128.50, 119.15, 95.84, 24.57, 12.48.

References

[1] ACS Medicinal Chemistry Letters, 2014, vol. 5, # 1, p. 12 - 17
[2] European Journal of Medicinal Chemistry, 2015, vol. 101, p. 595 - 603
[3] Shionogi Kenkyusho Nenpo, 1957, # 7, p. 301,304
[4] Chem.Abstr., 1957, p. 17889
[5] Patent: US2888455, 1957,

4-ACETYLAMINO-N-(5-METHYL-3-ISOXAZOLYL)BENZENESULFONAMIDESupplier

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